vReveal's Free Video Enhancement Software. This looks pretty useful, and supports CUDA. If you have ATI cards like me still can use CPU for that. (vReveal told me multi-core CPU is well supported too) It's good to see more non-gaming software using CUDA, but doesn't really benefit me anymore because I recently switched to ATI. Free versions lack certain features such as HD video output, but you can buy the full version at dirt cheap price of $39, anyways.

Gamefest 2010 presentations are now available online. I've seen them long time ago, so I don't remember what exactly are there. I just have impression that there were some useful stuff on graphics and optimization. So you go check'em out and find your own use. :)